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Try this it is really easy I just did it the other day and my X5 works great now.
This is a post I made a few days ago on the Dell Axim Forum. I still have'nt had any problems since I made the repair.
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I had this problem for about 6 months. I was able to work around it by pressing in on the sides. The problem progressively got worse, so I decided to open it up and see what was going on. This is what I found:
The touch screen lays on top of the display screen. At the bottom of the touch screen, directly below the "Inbox Button", there is a flex cable (flat mylar with conductors). I found that the contacts from the button had scratch through the mylar on the flex cable and would short out. I suppose this would scramble the decoding from the touch screen.
To correct the problem, I cut a small piece of electrical tape and laid it across the damaged area on the flex cable. I reassembled it using just the screws (I left the rubber sides and feet off) and tested it. After I was sure it was working correctly, I finished assembling it.
You can find detailed disassembly instructions on the web by doing a search for X5 screen replacements. The procedure isn't that difficult, just be careful when you remove the rubber sides and feet to lift them slowly and try to keep the glue stuck to the rubber (this makes reassembly much easier).
Quick instruction:
1. Do a complete backup of your unit (you will loose all your data).
2. Remove both batteries and any cards.
3. Remove the rubber feet, sides and plugs at the bottom back.
4. Remove 6 screws from the back.
5. You should be able to remove the back of the unit.
6. Unplug the speaker cable (pull straight up on the plug).
7. Lift the motherboard and screen away from the front cover.
8. Make your repair.
9. Reassemble in reverse order.
Hope this works for you, I did this about a week ago and haven’t had a problem since.
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